7 
Spain generally vary in some degree from our’s, 
which renders it desirable to possess them. 
THE common shells (except the oyster) 
which are found in the Guadalquiver, at Cadiz, 
and up the Mediterranean, at Cette, Marseilles, 
and more particularly at Naples, (where there is 
a great variety of coral), are desirable; and even 
those which resemble the species in the English 
seas, for, on close examination, they are found 
to differ materially. We are little acquainted 
with the shells from the south coasts of the 
Mediterranean, Malta, Sicily, or the Archi- 
pelago. 
WHEN at Magadore, I found fine limpets, and 
an interesting variety of barnacles; also mus- 
cles, and various land helices, which I persuad- 
ed the Moors to bring from the interior. 
MANY varieties of shells, some of which are 
